DevTools: remove most convenience wrappers from WI.TimelineModel.Record

LayoutTests/inspector/tracing/timeline-coalescing.html

Index: LayoutTests/inspector/tracing/timeline-coalescing.html
diff --git a/LayoutTests/inspector/tracing/timeline-coalescing.html b/LayoutTests/inspector/tracing/timeline-coalescing.html
index 5675052a55dce64eaa6afd1089a61f83cdf70652..e7dac638ebbc4297e1ad39c3477d3a0cd9a0efa7 100644
--- a/LayoutTests/inspector/tracing/timeline-coalescing.html
+++ b/LayoutTests/inspector/tracing/timeline-coalescing.html
@@ -12,13 +12,14 @@ InspectorTest.dumpStats = function(presentationRecord)
     if (!presentationRecord.presentationParent())
         return "";
 
+    var model = InspectorTest.timelineModel();
     var aggregatedStats = {};
     if (presentationRecord.coalesced()) {
         var presentationChildren = presentationRecord.presentationChildren();
         for (var i = 0; i < presentationChildren.length; ++i)
-            WebInspector.TimelineUIUtils.aggregateTimeForRecord(aggregatedStats, presentationChildren[i].record());
+            WebInspector.TimelineUIUtils.aggregateTimeForRecord(aggregatedStats, model, presentationChildren[i].record());
     } else {
-        WebInspector.TimelineUIUtils.aggregateTimeForRecord(aggregatedStats, presentationRecord.record());
+        WebInspector.TimelineUIUtils.aggregateTimeForRecord(aggregatedStats, model, presentationRecord.record());
     }
 
     var timeByCategory = "";